Folder for dynamite-shell machines.



J. A. JOHNSTON.

FOLDER FOR DYNAMITE SHELL MACHINES.

APPLIOATIIDON FILED NOV. 19, 1907.

91 1,578 Patented Mar. 9, 1909.

2 SHEETS-SHEET 1.

J. A. JOHNSTON FOLDER FOR DYNAMITE SHELL MACHINES.

APPLICATION FILED NOV 19, 1907.

Patented Mar. 9, 1909.

2 SHEETS-SHEET 2.

witnesses JOHN A. JOHNSTON, OF EMPORIU'M, PENNSYLVANIA.

FOLDER FOR DYNAMITE-SELL macmrns.

To all whom it may concern:

Be it known that 1, JOHN A. Jomrsrou, a citizen of the United States,residing at Emporium, in the county of Cameron and State ofPennsylvania, have invented certain new and useful Improvements inholders for Dynamite-Shell Machines, of which the following is aspecification, reference being had therein to the accompanying drawing.

This inventionrelates to an improvement in the art of machines forforming paper shells or cartridges used for packing dynamite, and theinvention consists more specifically in an attachment for folding ortucning in the ends of the shells or cartridges after the same have beenwound or formed in the usual manner, said attachment being designed foruse in connection with any of the well known machines used to wind orroll the shells or cartridges.

The object of the present invention is'the provision of a folder of thischaracter which is of a simple. construction and which is whollyautomatic in o eratio'n.

A further object of tlie invention is the provision of a folder of thischaracter employing apluralityof folding members, either of which may bebrought into position to operate upon the end of the tube to be folded,whereby said device may be used with equal success upon tubes of varioussizes.

Other objects of the invention will be apparent from thedetaileddescription hereinafter, when read in connection with theaccompanying drawings forming a part hereof, wherein a preferableembodiment of my invention is shown, and wherein like characters ofreference refer to similar'parts in the several views.

Referring now more particularly to the drawings, Figure 1 is a sideelevation of a machine for forming shells for )acking dynamite,-with myimproved attac unent secured thereto. Fig. 2 is a fragmentary frontelevation of amachine for forming dynamite shells, with my attachmentsecured thereto. Figs. 3 and 4 are detail views illustrating twodiflerent forms of folder wheels. Fig. 5 is a detail fragmentary viewshowing the folder wheel disclosed in Fig. 3 as making the fold on theend of the tube, and Fig. 6 is an end view of a tube alter the same hasbeen folded but before the folds have been tucked in.

in the drawings, A designates a mandrel of a machine for forming papershells used for pacln'ng dynamite which is designed to be Specificationof lietters Patent.

Patented. March 9, 1909.

Application filed. November 13, 1907. Serial No. 402,930.

driven in any suitable manner and u on.

which the tube may be wound or lorme by any of thewell known methods.Secured in the lower part of the frame of the machine and positioned atone side of the mandrel A. and extending parallel therewith, is a shaftB upon which is secured a lar e gear wheel B. The shaft B is ada ted toe driven by the driving means whic actuates the mandrel A and isconnected thereto by gearing which may be of any suitable constructionand which, as it forms no part of the present in vention, has for thesake of olearness been omitted from the drawings.

C designates a fixed shaft. which is suported in any suitable manner.from the rame of the machine and whch is positioned above the shaft Band exten s arallel thereto. Mounted upon the shaft O so as to rotatefreely thereon is a small gear wheel D which meshes with the gear WheelB socured to the shaft B, and a somewhat larger gear wheel D which isalso loosely mounted on the shaft C and is connected in any suitablemanner with the small gear wheel D so as to rotate therewith? Looselyfulcrumed on the shaft C at one side of the ear wheel D mounted thereonis a lever E, t e, lower end of which extends into proximity to theshaft B and the upper end of which is adapted to be swu in a path acrossthe outer end of the man rel A. Journaled in the end of the lever E is ashaft F to which is secured a car wheel F, which'is cared to the ear weel l3 mounted upon t e fixed shaft through the medium of an idle earwheel ll, journaled on the lever E an meshing with the ear WheelD, fromwhich construction it will e a parent that the shaft F will be constanty rotated regardless of the position to which the lever E may be movedon its fulcrum. Rigidly connected in any suitable manner to the end ofthe shaft F adjacent the outer end of the mandrel A is a folder tube. Inthe form of the invention dis closed in. the accompanying drawin thefolder is shown as provided with five ngers, as this number has beenfound to work successfully with tubes of all sizes, but it is obviousthat the number of fingers may be varied, if desired, without departingfrom the spirit of the invention. n using the folder in connection withshells of a ve small diameter, it has been found that if the form offolderheretofore described is used, the first fold or tuckis apt tospring out before the shell is engaged by the next succeeding finger tomake the second tuck or fold, and hence it has been found necessa toprovide a folder wheel of a special form fbr tubes of such a size. Hdesignates a folder wheel designed for this urpo'se. The wheel G isremovably secure in any suitable manner to one end of the shaft F sothat it may be readily removed and the position of the shaft reversedaccording as it is desired to use either the wheel G or the wheel H, thewheel G being used upon the larger and the wheel H upon the smallertubes. It is obvious that the same result may be obtained by removablysecuring the 'wheel H or both the wheels G and H to the shaft. The wheelH is rovided with five'fingers it, which are simi er in construction andlocation to the fingers g of the folder wheel G heretofore described,with the exception of the first finger, which is provided adjacent therear portion of the outer edge thereof with a sucplplemental finger h,which projects outwar g be 0nd the outer edge of the finger of whic itorms a part. In the operation of the device, when this form of folderwheel is employed,

the supplemental finger it will engage the projecting end of the papershell or cartridge and form a supplemental fold therein which willprevent the fold, formed by the first finger h from pushing out beforethe second fin er of the folder engages the "meeting on of the shell toform the secon fo d, the remaining folds being formed successively bythe remaining fingers h.

The folder wheels G and H are each. provided with collars on the innerfaces thereof,

which serve to space the same res ectively eel F and the s1 e of thefrom the gear w lever E. The collar on the inner face of the folderwheel G. is however, considerably wider than the collar on the folderwheel H, whichfthrows the folder wheel G in nearer the end of themandrel when the same is used than the osition occu ied b the folderwheel H w on that wheel is used This construction is essential as deeperfolds must be made on the ends of the large tubes in connection withwhich the folder G is employed, than on the ends of the smaller tubes inconnection with which the folder H is employed.

The gearin between the driving means for the mandrel H and the .folderwheels G and H is of such a construction that the relative speeds ofrotation of the mandrel and folder wheel are such that by the time themandrel has made one complete revolution after the proper folder wheelhas been thrown into operative position, all of the fingers of'thefolder wheel will have engaged the projectiw end of the shell on, themandrel and forme the re er number of folds therein, after whic t efolder wheel will be thrown to inoperative position and the folds tuckedin, as'will be hereinafter more particularly set forth.

The desired folder wheel is normally held v in an inoperative positionby means of a spring I which connects the .e t e fulcrum thereof 1th asuitable portion of the frame of the machine, but is adapted to beperiodically thrown into operative position by an arm or cam B, which iscarried by the shaft B and is adapted during the rotation of said shaftto engage the lower end of the lever E and move the same outwardly. Fromthis construction, obviously, as long as the cam or arm ll remains inengagement with the lower end of the lever, it is apparent that thefolder wheel will beheld in operative position and that as soon as thecam or arm rides off the end of the lever the folder wheel will bewithdrawn from operative position by means of the spring I. The gearingwhich connects the driving means of the mandrel A and the shaft B isadapted to be of such a construction that the folder wheel will not bethrown into operative position until the shell or cartridge has beencompleted -u on the mandrel and the construe tion of tlie lower end ofthe lever E and the cam or arm B is such that the folder will be held ino erative position just long enough to form all of the folds in the endof theshell.

K is actuated to engage t e folds previously made by the folder wheeland tuck the same l into the end of the shell or tube, after which 1 thearm is lowered and the shell or tube re 'moved from the mandrel by anysuitable means. Any suitable means may be provided for operating the armK, but I prefer to provide the same adjacent its fulcrum wit tends alink 11: which may be actuated in any suitable manner by the same meanswhich imparts-rotation to the mandrel A. if the arm K is actuated inthis manner, it will be obvious that the construction employed must beof such a nature that the movement of the arm K must be so timed as tooccur imme diately after the folder has been moved to an inoperative)osition. The in It is preferver E above Pivotally-mounted in theforward part, of

u an offset it", from which pivotally ere i upper end a pin k which isprovided. with a ably adjusts ly secured in t e upper end of the arm K,a preferred construction being crests 0 shown in sccoznpsnyin drewing',in

which, the pin is thresded one is held in soy desired position by e notpositioned on opp-osite sides of the error.

I do not desire to limit myseli' to the precise form s d constructionshown in the drawings, as is obvious the-t merry minor changes may bethereto without depertin from the spirit of the invention define 4 theeppended claims] Having thee described the invention, wliiot is claimedis z- 1. In device of the chsrscter described, the combinstion" witherotstoble rnsndrel, of

s member nicvsble in s plene parallel to the.

pleas oi the outer end of sold msndrel a rotatable folder carried bysaid member.

2. In s. dev'ce of the cherscter described, the ccrn Bowen withrots/table mendiel,

' d to swir e per- 1: r: 3110i means 110i ..-e or the end or b sand,

folder c i L. the coir with e rotatable oi s rota sl der it st plsne p othe plane oi t. end of seio nresns for esid fold in n with ssid ndrelrecess for outer--. J and periodicelly swinging seid folder to operativeposition.

4; ln s device of the char-ester described, the combination with srotstsble mandrel, oi e member movable in 9. plane psrsllel to the planeof theend of the mandrel, e rote.-

table folder carried by said. member, and

means tor automatically end eriodicslly shifting said member to movesold folder to an operative position.

5. In 9. device of the chsrscter described, the combination with srotsteble mandrel, of a folder adopted to move in s plane parallel tothe plane of the outer end of sold mandrel, means for continuouslyroteting said folder, and means for sutomsticslly on periodicallyswinging ssid folder to on opera tive position.

6. ln a. device of the chersctcr described, the combination. with srotstsble msndrel, of a folder wheel provided with s lurslity of spscedfingers projecting rsdie. y there from, and extending only partiallytheresround, means for rotating said folder wheel, and mes-he forswinging ssid folder wheel across the end of the mandrel.

7. in e device of the character described, the combination with srotstsble niendrel, of a rotstsble folder adapted to swim in s planepsrellel to the end of the msndrel, ssid 8. lln s device of thechsracter described, 6 the combinstion with s rotetcble folder sdsptcdto swing in a; plane parallel to the end of the mandrel, solo foldercomprising a. wheel rovided with s plurslity of lingers projectingradially therefrom, means for rogo toting sold wheel in unison with soldmow drel, and moons for automatically odicslly swinging ssid folder tooperetive position. v

9. The cornhinetion with s rotetsble more drel, of a folder ode ted torotate the end thereof, ssid f0 der comprising e wheel. provided with splurality of lingers projecting rsdiolly therefrom end extending tiollythcreoroond, the first one of ting rs beso ing rovided with osnpnlernentel ii ten ing from the rear thereo; 1r yectrns beyond the endthereof, sol supplesilent-s l finger lying the se.

forming a continuation the L"? which it extends.

lb. A. folder of the chsrecter described comprising s wheel to -otetionof. ,,"a\ 1 I provided with s l l ty ot snow regulorly spec/ed ntherefrom, the first o provided with s. sipplementsl mg from the rear ethereof end projecting beyond the end thereof, ssid subplernentsl lingerlying in the same plane on forming a continuation of thefinger fromwhich it extends.

ii. in a. device oi the chsrscter described, the combination with crotstsble mendrel, oi 8, member movable in lone pcrsllel to the plane ofthe end of sand mandrel, s. shaft removsbly secured in said member, endfolder members carried by the'opposite ends of ssid shaft.

12. In s device of the chsrocter described, ts the combination with srotstsble Insndrel, of an arm mounted to swing in e plsne perellelto theplane of the outer end of said mandrel, s. sheit removsbly secured insold Isrm, and folder wheels carried by the opposite end of said shsft.

. l3. lln o device of the chsrecterdescribed, the combinstion with srotstsble msndrel, of an arm mounted to swing in s plane psrollel to theplane of the outer end of said niendrel, a shaft removebly secured insaid arm, folder wheels ha-vim difl erentieting choreoteristics carriedby t e opposite ends of said shaft.

14. In a device of the character described, the combination with srotsteble mandrel, of en 'srm mounted to swing in s vplsne psrcllel tothe plane of the outer end of said msndrel, s folder carried by saidarm, and means tor continuousl rotating said folder.

15. In a, cvice of the character described, the combination with arotatable mandrel, of

, o pivoted arm mounted to swing in a plane a rotatable shaft provide'adapted to periodically contact with the lower end of said arm.

16. In a device of the'character described, the combination with arotatable mandrel, of a pivoted arm mounted to swing in a lane parallelto the plane of the outer end 0 said mandrel, a rotatable folder carriedby the upper end of said arm, a spring for normally ho ding said folderin an ino erative position, with an offset portion adapted toperiodically contact with the lower end of said arm, and gearingconneotin said rotatable shaft and said folder. 17. n a device 'of thecharacter described, the combination with a rotatable mandrel, of afolder adapted to fold the end of a shell formed on said mandrel, and aswinging arm movable toward and away from the end of said mandrelprovided with a portion adapted to tuck inthe folds formed by thefolder.

18. In a device of the character described,

' thecombination with a. rotatable mandrel, of 4 a folder adapted tofold the end of a shell formedon said mandrel, and a swinging armprovided with an adjustable pin therein the 1 outer end of said'pinbeing provided with a conical shaped head.

19. Ina device of the character described,

the combination with a rotatable mandrel, of a rotatable folder andmeans for bodily shiftin said rotatable folder in a lane paralle to-theplane of the outer end 0 said mandrel to move the same into and out ofoperative position.

20. In a device of the character described, the combination with arotatable mandrel, of a shiftable folder su porting member, a foldercarried .by said supporting member and adapted to overla the end of themandrel when the supporting member is moved to its operative positionand means for'rotat- I 'ing said folder.

21. In a device of the character described,

the combination witha rotatable mandrel, of a folder sup ortini membermovable toward and away em t e end of said mandrel, a shaft carried bsaid supporting member, and interchangeab e folder members mounted uponthe opposite ends of said shaft.

In testimony whereof I afiix my signature in presence of two witnesses.

JOHN A. JOHNSTON. Witnesses:

I. N. Haoninr. H. RJKLEES.

